243172224120 has 128 divisors (see below), whose sum is σ = 840098096640. Its totient is φ = 55157905920.

The previous prime is 243172224089. The next prime is 243172224121. The reversal of 243172224120 is 21422271342.

243172224120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243172224121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994887 + ... + 1214966.

It is an arithmetic number, because the mean of its divisors is an integer number (6563266380).

Almost surely, 2^243172224120 is an apocalyptic number.

243172224120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243172224120 is an abundant number, since it is smaller than the sum of its proper divisors (596925872520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243172224120 is a wasteful number, since it uses less digits than its factorization.

243172224120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210005 (or 2210001 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

Adding to 243172224120 its reverse (21422271342), we get a palindrome (264594495462).

The spelling of 243172224120 in words is "two hundred forty-three billion, one hundred seventy-two million, two hundred twenty-four thousand, one hundred twenty".